EagleBurgmann international
UK
UK
UK
UK
UK
UK
EagleBurgmann WORLDWIDE
With around 250 locations and 90 serve centers, we are represented in the most important economic regions of the world. The advantages are clear: short paths to our customers, fast response times and a shared language.
Separation seals
CobaSeal
| Item | Description |
| 1 | Seal face, stationary |
| 2 | Seat, rotating |
| 3 | Thrust ring |
| 4 | Spring |
| 5 | Shaft sleeve and seat retainer |
| 6 | Housing (size matched to installation space) |
| D | Separation gas |
CobaSeal
Features
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
- Self cleaning 3D gas grooves
- Aerostatic and aerodynamic lift-off
Advantages
- Extremely low leakage
- Double arranged (co-axial) dry gas seal with just one pair of seal faces
- Insensitive to oil contamination due to its special design
- Wear-free, non-contacting operation in all conditions
- Insensitive to radial vibrations due to axial sealing gap
- Slow-roll or turning operation capable (static lift-off)
- No limits regarding dew point of separation gas (silicon carbide instead of carbon)
- Lower N2 consumption than any other system
- N2 can be switched off during standstill - the gap will close and still provide the best oil sealing performance
- Best in class oil sealing by extremely small sealing gap and sling effect of rotating ring
Operating range
Shaft diameter:
27.2 ... 323.2 mm (1.07" ... 12.72")
Design pressure (mechanical integrity):
p = 0 … 70 bar (0 ... 1000 PSI)
Normal operating pressure:
p = 2.7 bar (39.16 PSI)
Temperature:
t = -20 °C … +200 °C (-4 °F … +392 °F)
Sliding velocity:
vg = 0 ... 150 m/s (0 ... 492 ft/s)
Dew point: No limitation
27.2 ... 323.2 mm (1.07" ... 12.72")
Design pressure (mechanical integrity):
p = 0 … 70 bar (0 ... 1000 PSI)
Normal operating pressure:
p = 2.7 bar (39.16 PSI)
Temperature:
t = -20 °C … +200 °C (-4 °F … +392 °F)
Sliding velocity:
vg = 0 ... 150 m/s (0 ... 492 ft/s)
Dew point: No limitation
Materials
Seal face: Silicon carbide*
Seat: Ductile stainless steel*
Shaft sleeve: Stainless steel TC-coated
Secondary seals: FKM
Metal parts: 1.4006
* With special EagleBurgmann high performance iDLC (in situ Diamond-Like-Carbon) coating
Seat: Ductile stainless steel*
Shaft sleeve: Stainless steel TC-coated
Secondary seals: FKM
Metal parts: 1.4006
* With special EagleBurgmann high performance iDLC (in situ Diamond-Like-Carbon) coating
Standards and approvals
- NACE
- API 692
Recommended applications
- Oil and gas industry
- Refining technology
- Petrochemical industry
- LNG
- CCUS
- Hydrogen
- Alternative fuels production
- Power generation
- Nitrogen
- Air
- Centrifugal compressors
- Blowers
Notes
Since it was launched on the market, this innovative sealing
solution has proven its worth worldwide in both first fit and
retrofit applications. It consists of a rotating seat made of
ductile material and a stationary, spring-loaded seal face.
The separation gas is routed through axial holes in the
stationary seal ring into the middle of the sliding face. It is
then divided in the sealing gap into two leakage flows
which are routed to the inner and outer diameters of the
seal face.
Dimensions on request.
Dimensions on request.
Similar products
CSE
- Non-contacting bushing seal
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
- Equipped with Espey carbon rings type WKA400
CSR
- Contacting bushing seal
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
Contact
Inquire about individual solutions
We develop and produce customer-specific special and individual solutions for every application.